Acer X233HZ Service Manual Download Page 31 | Manualshive

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Acer X233HZ Service Manual Download Page 31

31

Troubleshooting

This chapter provides troubleshooting information for the X233HZ&X243HQ:

1. No Power

Chapter 4

No power

Press power key and look if the
picture is normal

Please reinsert and make sure the
AC of 100-240 is normal

Reinsert or check the
power section

Check if X401 oscillate waveforms are
normal

Measure U703 Pin2=3.3V,

OK

OK

NG

NG

NG

Check U703, C706 and C707

Replace U401

Replace X401

NG

OK

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Summary of Contents for X233HZ

Page 1: ...1 Acer X233HZ X243HQ Service Guide...

Page 2: ...2 Service Guide Version and Revision Version Release Date Revision History Customer model TPV model A00 Dec 18 2008 Initial Release X233HZ X243HQ TDRMNDD8Y1ABPN...

Page 3: ...uyer and not Acer Incorporated its distributor or its dealer assumes the entire cost of all necessary servicing repair and any incidental or consequential damages resulting from any defect in the soft...

Page 4: ...rference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interfer...

Page 5: ...purpose of the grounded plug Unplug the unit during a lightning storm or when it will not be used for long periods of time This will protect the monitor from damage due to power surges Do not overload...

Page 6: ...w chart 16 Main Board Layout 18 Installation 19 Chapter 2 Operating Instructions 21 External Controls 21 Front Panel Controls 21 eColor Management OSD 22 How to Adjust a Setting 23 How To Optimize The...

Page 7: ...oduct with no radiation This will alleviate the growing health concerns It is also a space saving design allowing more desktop space and comparing to the traditional CRT monitor it consumes less power...

Page 8: ...linear distributed gray scales 0 700mv can be distinguished Color temperature 6500 K Brightness control The value under user mode Analog Input signal 700 mVss Picture position and size Factory preset...

Page 9: ...ay mode 1920 x 1080 60Hz EPA ENERGY STAR ON Mode 65W OFF Mode 1W Contrast control Set to The value under user mode which allows that the brightest two of 32 linear distributed gray scales 0 700mv can...

Page 10: ...iquid Crystal Display module with 4 CCFL Backlight unit and 30 pins 2ch LVDS interface This module supports 1920 x 1080 Full HD mode and can display up to 16 7M colors The inverter module for Backligh...

Page 11: ...11 Back light Unit Electrical Characteristics...

Page 12: ...12 Optical Specifications...

Page 13: ...00 x 1000 60 000 P 60 000 P 108 000 1280x720 60Hz 1650 x 750 44 955 P 59 940 P 74 176 SXGA 1280x1024 60Hz 1688 x 1066 63 981 P 60 020 P 108 000 WXGA 1280x800 60Hz 1680 x 831 49 702 P 59 810 N 83 500 1...

Page 14: ...ouse the flat panel control logic brightness control logic and DDC The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage Power Bo...

Page 15: ...Flash Memory SST25VF010A U402 Panel Interface CN301 Crystal 12MHz X401 Key control Interface CN402 Scalar IC NT68667UFG C Include MCU ADC OSD U401 D Sub Connector CN101 H sync V sync RGB DVI Connector...

Page 16: ...16 Software Flow Chart N Y 1 2 N Y 5 Y N 10 Y N 12 Y N 7 Y N 6 4 3 8 9 14 11 13 Y N 15 Y N 16 17 19 Y N 18...

Page 17: ...set it to green color Scalar initializes 10 In standby mode 11 Update the lifetime of back light 12 Check the analog port are there any signals coming 13 Does the scalar send out an interrupt request...

Page 18: ...02 WAFER U703 IC LD1117DT33TR DPAK CN701 WAFER 9P RIGHT ANELE PITCH U103 IC AZC099 04S SOT23 6L CN301 CONNECTOR U104 IC AZC099 04S SOT23 6L X401 CRYSTAL 12MHz HC 49US ARG6 120 U402 SST25VF010A 33 4C S...

Page 19: ...or and computer are powered OFF b Connect one end of the 24 pin DVI cable to the back of the monitor and connect the other end to the computer s port Steps 2 Connect power cord Connect the power cord...

Page 20: ...as indicated first before removing the base and follow the arrow direction to remove it SCREEN POSITION ADJUSTMENT In oder to optimize the best viewing position you can adjust the tilt of the monitor...

Page 21: ...ON 3 Empowering Exit 1 When OSD menu is in active status this button will act as EXIT KEY EXIT OSD menu 2 When OSD menu is in off status press this button to select scenario mode 4 Auto Adjust button...

Page 22: ...Acer e Color Management OSD and access the scenario modes Step 2 Press or to select the mode Step 3 Press Auto Key to confirm the mode and run Auto Adjust Automatic Adjustment Step 1 Press Auto Key t...

Page 23: ...t you want to adjust 4 Press or to change the settings of the current function 5 To exit and save select the exit function If you want to adjust any other function repeat steps 2 4 P X Series OSD beha...

Page 24: ...24 If selected to USER item will appear the Standard OSD Adjusting the picture The descriptions for function control LEDS...

Page 25: ...25...

Page 26: ...26...

Page 27: ...ll automatically switch to an OFF mode This reduces the monitor s internal power supply consumption After the video input signal is restored full power is restored and the display is automatically red...

Page 28: ...for disassembly is as follows Screwdriver Hexagonal screwdriver Putty knife Disassembly Procedure 1 Remove the hinge assembly 2 Remove the rear cover and bezel The arrows in blue are the hook that we...

Page 29: ...29 3 Remove the lamp connectors and remove the screws to remove the panel Put attention to the LVDS cable 4 Remove the screws to remove the main board and power board...

Page 30: ...30 5 The panel...

Page 31: ...Chapter 4 No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100 240 is normal Reinsert or check the power section Check if X401 oscillate waveforms are...

Page 32: ...Replace U401 Replace X401 Measure U703 Pin2 3 3V Check Correspondent component Replace U401 X401 oscillate waveform is normal Check U703 C706 and C707 OK OK OK OK OK NG NG NG NG Check reset circuit o...

Page 33: ...se is low level X401 oscillate waveform is normal Check CN301 is solder and Q302 Q301 is OK Check Correspondent component Replace PANEL Check Correspondent component Replace U401 OK OK OK Replace X401...

Page 34: ...rd OSD is unstable or not working Is Key Pad Board connecting normally Connect Key Board Is Button Switch normally Replace Button Switch Y NG NG Is Key Pad Board normally Replace Key Board Y NG Y Chec...

Page 35: ...rectified circuit and F901 circuit Check start voltage for the pin3 of IC901 Check R904 R905 and Change IC901 NG Check the auxiliary voltage is bigger than 11V and smaller than 25V 1 Check IC901 2 Che...

Page 36: ...part Check ON OFF signal Check Interface board NG OK Check IC801 PIN12 14 5V NG OK Check ON OFF circuit Check IC801 PIN5 have triangle wave NG OK Change IC801 Check IC801 PIN9 PIN10 PWM wave NG OK Che...

Page 37: ...37 Connector Information D sub connect and DVI connect 15 Pin Color Display Signal Cable 24 Pin Color Display Signal Cable Chapter 5...

Page 38: ...a part number change is made it will not be noted in the printed Service Guide For ACER AUTHORIZED SERVICE PROVIDERS your Acer office may have a DIFFERENT part number code from those given in the FRU...

Page 39: ...1 2 9 BAES BRACKET A15G0567 101 1 10 HINGE A37G0110 1 1 11 HINGE COVER R A33G0271 RX 2L0200 1 12 HINGE COVER L A33G0271 RX 1L0200 1 13 BASE BUTTON A33G0266 RX 1L0100 1 14 BASE A34G1109 RX 1B0130 1 15...

Page 40: ...art List Above picture show the description of the following component Picture Description Part No Main_frame_Sam A15G0477F01101 Bezel A34G1105 RXA1B0130 Panel 750GLM236H1112N000 Power Board PWPC8E41M...

Page 41: ...41 Main Board CBPCRNDABQP Key Board KEPC7QK1 Stand Front A34G1107 RX 1B0100 Base A34G1109 RX 1B0130 Stand Rear A34G1108 RX 1B0100...

Page 42: ...42 Hinge A37G0110 1 USB BOARD USB7QK4...

Page 43: ...A_B DSUB_SDA U107 DDC_WP DAT2 1 DAT2 2 2 4shield 3 DAT4 4 DAT4 5 DDC SCL 6 DDC SDA 7 VSYNC 8 DAT1 9 DAT1 10 1 3shield 11 DAT3 12 DAT3 13 5V 14 SYNC GND 15 HPD 16 DAT0 17 DAT0 18 0 5shield 19 DAT5 20 D...

Page 44: ...R305 0 OHM 5 1 8W PANEL_VCC Q302 2N3904S RTK PS R306 10K 1 16W 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 CN301 CONN AO3401L 2 1 C304 NC C303 NC C306 0 1uF 16V...

Page 45: ...K 1 16W 5 C706 100uF25V C701 NC C708 0 1uF 16V C702 NC 1 2 3 4 5 6 7 8 9 CN701 CONN R705 10K 1 16W 5 R704 4K7 1 16W 5 BKLT EN C707 100uF25V C709 0 1uF 16V R706 1K 1 16W 5 VSS 1 VOUT 2 VIN 3 U701 NC AP...

Page 46: ...2M T7M 69 RSGA2P T7P 68 PA1 PWM3 67 PA2 PWM4 66 PA0 PWM2 65 OSCO 128 OSCI 127 PB0 ADC0 126 PB1 ADC1 125 PC5 124 PC4 PWM1 123 PC3 PWM0 122 PC1 121 PC0 120 CVDD 119 PWMB GPO8 118 PWMA GPO7 117 NC 116 CV...

Page 47: ...PV MODEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component TDRMNDD8Y1ABPN 1 Custom 2 4 Friday December 05 2008 715G2824 1 5 ODM MODEL 03 POWER G2824 1 5 X 6 081125 R914 0 39 OHM 2W 5 F903 FU...

Page 48: ...2 L R810 100K 1 10W 1 HV 1 LV 2 CN804 CONN R838 1M 1 10W 5 R842 10K 1 10W 5 3 1 2 D803 BAV99 LV1 LV4 LV2 LV3 LV1 LV3 LV2 LV4 D801 IN4148 C801 0 047uF C802 0 047uF R803 5K1 1 8W 5 R804 5K1 1 8W 5 OEM M...

Page 49: ...ictory Electronics Co Ltd Key Component TDRMNDD8Y1ABPN F Custom 4 4 Friday December 05 2008 715G2824 1 5 ODM MODEL 04 AUDIO G2824 1 5 X 6 081125 ROUT C612 0 1uF 16V R609 10K 1 10W 5 LOUT ROUT C604 100...

Page 50: ...07 5 18 2007 5 18 2007 5 18 2007 5 18 CONNECTOR 1 2 4 3 5 SW005 SW C006 NC VOL C005 NC C002 NC C008 NC C003 NC ZD002 UDZS5 6B 2007 5 18 C001 NC C004 NC 1 1V 1 1V 0 65V LED POWER AUTO MENU VOL VOL C010...

Page 51: ...10W 1 VBUS4A OC4 Power USB Q712 RK7002 C774 100uF 16V R744 8K2 1 10W 1 C7102 18P 50V 1 2 FB724 120 OHM 1 2 3 4 5 CN710 CONN 1 2 3 4 5 CN711 NC CONN C776 100uF 16V C799 0 1uF16V 12V VBUS3 DP4 DM3 DP3...

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